2 Libpng 1.2.0 - September 1, 2001
4 This is a public release of libpng, intended for use in production codes.
6 Changes since the last public release (1.0.12):
8 Enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED
10 Added runtime selection of MMX features.
11 Added png_set_strip_error_numbers function and related macros.
12 Enabled user memory function by default.
13 Increased png_mng_features flag from png_byte to png_uint_32.
14 Bumped shared-library (so-number) and dll-number to 3.
15 Updated makefile.ibmc, makefile.gcmmx
16 Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes
17 of png_write_oFFS width and height from png_uint_32 to png_int_32.
19 Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c
20 Revised pnggccrd.c to conditionally compile some thread-unsafe code only
21 when PNG_THREAD_UNSAFE_OK is defined.
22 Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with
23 value exceeding 2^bit_depth-1
24 Removed restriction that do_invert_mono only operate on 1-bit opaque files
25 Replaced calls to fprintf(stderr,...) with png_warning() or png_debug()
27 Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC().
29 Send comments/corrections/commendations to
30 png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu